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Binocular see-through configuration and eye movement attenuate visual rivalry in peripheral wearable displays.
Proc SPIE Int Soc Opt Eng
March 2023
Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Article Synopsis
- Visual confusion arises when different images are overlaid on the same part of the retina, useful in wearable displays to present multiple data sources, but can lead to visual rivalry that suppresses one image.
- The study examined how visual rivalries affect the visibility of peripheral targets using different display types (monocular opaque, monocular see-through, and binocular see-through) and varied eye movement conditions (saccades, smooth pursuit, and central fixation).
- Results indicated that binocular displays enhanced target visibility significantly compared to monocular ones, with the monocular see-through display offering the least visibility; eye movements also helped increase visibility by mitigating rivalry effects.
EEG analysis of the visual motion activated vection network in left- and right-handers.
Sci Rep
November 2022
Department of Neurology, University Hospital, Ludwig-Maximilians-Universität, München, Germany.
Article Synopsis
- The study looks at how our brain understands motion using our eyesight and balance, which is called vection.
- Researchers found that left-handed people and right-handed people process this information differently in their brains.
- They used EEG to measure brain activity and discovered that left-handers showed bigger differences in brain responses when they saw consistent vs. inconsistent motion compared to right-handers.
Vection Attenuates N400 Event-Related Potentials in a Change-Detection Task.
Perception
August 2019
Department of Experimental Psychology, The John Paul II Catholic University of Lublin, Poland.
ERPs in an oddball task under vection-inducing visual stimulation.
Exp Brain Res
December 2016
Faculty of Humanities, Nicolaus Copernicus University in Toruń, ul. Gagarina 11, 87-100, Toruń, Poland.
The neural mechanisms underlying the vection illusion are not fully understood. A few studies have analyzed visually evoked potentials or event-related potentials (ERPs) when participants were exposed to vection-inducing stimulation. However, none of them tested how such stimulation influences the brain activity during performance of the simultaneous visual task.
View Article and Find Full Text PDFBackground: The most commonly cited hypotheses for motion sickness (MS) focus on inconsistent sensory inputs. Visual/vestibular conflicts may lead to MS, but visual input from retinal regions/neural pathways that are sensitive to motion might bear more weight in MS etiology. We hypothesized that inducing blurred vision in an optokinetic drum would attenuate the influence of foveal (parvocellular) input, but not peripheral (magnocellular) input that is sensitive to motion.
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